PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DR60Ring Set,piston

Wisconsin Motors, Llc · NSN 2805-00-309-8961 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-309-8961 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-309-8961. Primary manufacturer part number: DR60.
Features
  • Ring Set,piston — FSC 2805
  • Ring Set Component Parts: TOP GROOVE COMPRESSION RING 4;2ND GROOVE COMPRESSION RING 4;3RD GROOVE COMPRESSION RING 4;BOTTOM GROOVE OIL RING 4
  • Standard Bore Diameter: 3.752 INCHES IN
  • Piston Accommodation Quantity: 4
  • 1 verified cross-reference
  • Primary manufacturer: Wisconsin Motors, Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Set,piston, cataloged under National Stock Number 2805-00-309-8961, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Wisconsin Motors, Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-309-8961
Primary Part NumberDR60
Item NameRing Set,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerWisconsin Motors, Llc
StatusACTIVE
Ring Set Component PartsTOP GROOVE COMPRESSION RING 4;2ND GROOVE COMPRESSION RING 4;3RD GROOVE COMPRESSION RING 4;BOTTOM GROOVE OIL RING 4
Standard Bore Diameter3.752 INCHES IN
Piston Accommodation Quantity4
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2920-00-019-29374056696 INTERCHANGEABLE
Cap,ignition Distribution
Kalmar AC Inc
Cross-Reference Index
Part NumberManufacturer
DR60 PRIMARY Wisconsin Motors, Llc (USA)
Related Parts
2920-00-019-2937INTERCHANGEABLE
CAP,IGNITION DISTRIBUTION
4056696

Frequently Asked Questions

What is NSN 2805-00-309-8961?

NSN 2805-00-309-8961 is a Ring Set,piston, manufactured by Wisconsin Motors, Llc, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-309-8961?

NSN 2805-00-309-8961 has 1 cross-referenced part number: DR60 (Wisconsin Motors, Llc).

What NSN replaces 2805-00-309-8961?

There is 1 known substitute for 2805-00-309-8961: 2920-00-019-2937. Verify interchangeability with system specifications before substitution.

What are the specifications of DR60?

Key specifications for DR60: Ring Set Component Parts: TOP GROOVE COMPRESSION RING 4;2ND GROOVE COMPRESSION RING 4;3RD GROOVE COMPRESSION RING 4;BOTTOM GROOVE OIL RING 4; Standard Bore Diameter: 3.752 INCHES IN; Piston Accommodation Quantity: 4. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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